Biostar has integrated its proprietary audio technology "Puro Hi-Fi Technology", into its newest motherboards based on the AMD FM2 platform, such as the Hi-Fi A85X and Hi-Fi A85S3.

A user can set up a full PC based home theater system with full THX support and true 7.1 surround sound, thanks to the quality sound and video capabilities present on the motherboards. The Puro Hi-Fi features an incorporated, independent audio power design with a built-in amplifier, and utilizes audio components with an independent power delivery design for a significant reduction in electronic noise. The unique noise-blocking multi-layer PCB layout is conductive for an exceptionally clean signal. That design feature, together with a sampling rate of 192 kHz/24-bit, delivers high quality audio through an analog connection to your home theater system, multi-channel speakers or high-end headphones.

Part of the Puro Hi-Fi design includes high-quality “Non-Polarized Electrolysis Electric audio capacitors” for each individual audio channel circuit delivering low noise, low distortion, and a wide bandwidth to achieve the highest sound resolution and sound expansion for the most realistic sound effects. Furthermore, the resistors used by the system are of the metal-oxide film type with metal oxides such as tin. The electric characteristics are that of greater stability and reliability than regular metal film resistors when operating in an extremely broad working temperature range. These special components are typically used in applications with high endurance audio demands.